The topography of Bi2VO5.5 ceramic measured with SEM and confocal microscope

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The topography of Bi2VO5.5 ceramics was measured by SEM and confocal microscope.

Polycrystalline Bi2VO5.5 ceramic (BiVceramic) was synthesised via a conventional solid state reaction route. The stoichiometric mixture of initial powders of Bi2O3 and V2O5were ball-milled in pure acetone for 6 h. The milling was performed in steps of 1 h with rest intervals of 10 min. The mixture was initially heated up to 770 K and then to 1020 K in air. It was kept at this temperature for 24 h and grinded next. The formation of the compound was confirmed by X-ray powder diffraction studies. The calcined powder was mixed with a small amount of ethyl alcohol binder and cold-pressed into pellets (12 mm in diameter and 2–3 mmin thickness) under a compacting pressure of 26 kNcm−2. The obtained pellets were sintered at 1070 K for 24 hwith heating and cooling rates of 50 Kh−1.

The topography of the samples was investigated using a Scanning Electron Microscope (SEM), FEI Company Quanta FEG250 with Energy Dispersive X-ray Analysis (EDAX Genesis APEX 2i with ApolloXSDD Spectrometer). SEM measurements were conducted on fractured samples on which a 7 nm thick gold layer was deposited, using a 10 or 20 kV beam accelerating voltage with a SE-ETD (secondary electron Everhart–Thornley detector) detector working in the high vacuum mode (pressure 104 Pa).The topography of the samples was also investigated by Confocal Microscope Olympus OLS 4000 Lext with a CCD camera.

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Informacje szczegółowe

Rok publikacji:

2015

Data zatwierdzenia:

2021-05-25

Język danych badawczych:

angielski

Dyscypliny:

inżynieria materiałowa (Dziedzina nauk inżynieryjno-technicznych)

DOI:

10.34808/jffw-ht29

Weryfikacja:

Politechnika Gdańska

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